WILIAN GRIJALVA
NPI 1831872357
Nurse Practitioner - Family in Bonsall, CA
About Wilian Grijalva NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILIAN GRIJALVA (NPI 1831872357) is an individual family provider in Bonsall, California, licensed in California (95026675) and active in the NPI registry since August 2023. He is enrolled in Medicare PECOS and is a graduate of Other (2023).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Wilian Grijalva is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show Wilian Grijalva reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Temecula, CA 92591
- Reassigned Medicare billing, California enrollment
- 6 clinicians in this Medicare group
La Jolla, CA 92037
- Reassigned Medicare billing, California enrollment
- 341 clinicians in this Medicare group
Lemon Grove, CA 91945
- Reassigned Medicare billing, California enrollment
- 7 clinicians in this Medicare group
Chula Vista, CA 91911
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Mohammed K Elsayed A Proffesional Corporation
- 2 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92003 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Wilian Grijalva's NPI number?
The NPI number for Wilian Grijalva is 1831872357. It was assigned to this individual provider in the NPPES registry on August 10, 2023.
Where is Wilian Grijalva located?
Wilian Grijalva practices at 5459 Meridian Pl, Bonsall, CA 92003. The listed phone number is (949) 547-0486.
What is Wilian Grijalva's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Wilian Grijalva enrolled in Medicare?
Yes. Wilian Grijalva is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Wilian Grijalva's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Wilian Grijalva reassigns Medicare benefits to 4 organizations: Jeremy Gomer MD Mobile Providers (Temecula, CA), Monica Perlman MD Inc. (La Jolla, CA), Olive Tree Nursing Corporation (Lemon Grove, CA) and Mohammed K Elsayed MD Apc (Chula Vista, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Wilian Grijalva's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Wilian Grijalva was last updated on August 15, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Wilian Grijalva · NPI 1831872357
Family physician in Bonsall, California. Individual provider, active in the CMS NPPES registry since August 10, 2023.
## Identity
- **NPI:** 1831872357 (Entity type: Individual)
- **Enumerated:** August 10, 2023
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 95026675 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 5459 MERIDIAN PL, Bonsall, CA 92003-3739
- **Phone:** (949) 547-0486
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Jeremy Gomer MD Mobile Providers (NPI 1609744929, Temecula, CA); Monica Perlman MD Inc. (NPI 1134309305, La Jolla, CA); Olive Tree Nursing Corporation (NPI 1194698043, Lemon Grove, CA); Mohammed K Elsayed MD Apc (NPI 1396167813, Chula Vista, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** August 15, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1831872357) · Data from the CMS NPPES public registry.